Home / 147,846.60-221,441.85-128,163.60

Finding the Fourth Proportional to 147,846.60, 221,441.85 and 128,163.60

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Solution

The fourth proportional to 147,846.60, 221,441.85 and 128,163.60 is: 191,961.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,846.60 : 221,441.85 = 128,163.60 : x
  2. Step 2: Convert to fraction form
    147,846.60/221,441.85 = 128,163.60/x
  3. Step 3: Cross multiply
    147,846.60x = 221,441.85 × 128,163.60
  4. Step 4: Simplify right side
    147,846.60x = 28,380,784,686.66
  5. Step 5: Solve for x
    x = 28,380,784,686.66/147,846.60
  6. Step 6: Final answer
    x = 191,961.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.